A method and device for controlling multi-system media stream transmission based on RTP

Abstract

The present invention provides an RTP-based multi-system media stream transmission control method, including a video conferencing server and a main control system. The method includes: step 10, the main control system obtains switching information, and notifies the first party receiving the media stream A system stops processing the media stream; step 20, the main control system sends the switching information and video conferencing server information to the second system; step 30, the second system according to the video Conference server information, sending an RTP message to the video conference server; step 40, the video conference server receives and analyzes the RTP message, and then sends the media stream to the second system. The present invention relates to the field of network communication technology. The method and device disclosed in the embodiment of the present invention can realize different-screen presentation of specified server-side video without changing the original system architecture, without affecting system performance, and the forwarding efficiency is guaranteed.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to an RTP-based multi-system media stream transmission control method and device. Background technique [0002] RTP (Real-Time Transport Protocol) is a real-time network transmission protocol formulated for multimedia data streams, which is published by IETF as RFC3550 (the old version is RFC 1889). RTP provides an end-to-end delivery service for data with real-time characteristics, such as interactive audio and video. These services include payload type identification, sequence numbering, time stamping and delivery monitoring. RTP itself only guarantees the transmission of real-time data, and does not provide a reliable delivery mechanism for in-order delivery of data packets, nor does it provide flow control or congestion control. [0003] In a large-scale video conferencing terminal, since there are multiple video output systems, the video stream at the video serv...

AI Technical Summary

Problems solved by technology

[0004] However, the existing technology has at least the following deficiencies. The SIP / H.323 technology needs to set up corresponding clients at both ends and carry out SDP negotiation before transmission can be carried out. The implementation complexity and difficulty are relatively high, and a server needs to be built The completion of cooperation requires high resources such as CPU and memory on the device; while the RTSP method requires the implementation of RTSP services on the main control, the requester can obtain the RTP stream through standard RTSP interaction, but it will consume the performance of the main control. And the forwarding efficiency cannot be guaranteed

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